Stopple for drain-pipes.



G. F. HOLOOMB. Y

STOPPLE-FUR DRAIN PIPES.

APPLICATION FILED AUG. 18, 1910.

Patented 0013.22 1912.

CHARLES F. HOLCOIVIB, OF BRIDGEPORT, CONNECTICUT.

STOPPLE FOR DRAIN-PIPES.

Specification of Letters Patent.

Patented Oct. 22,1912.

AppIication filed. August 18, 1910. Serial No. 577,872.

To all whom it may concern:

Be it known that I, CHARLES F. HoLooMB, of the city of Bridgeport,county of Fairfield, State of Connecticut, have invented a new anduseful Improvement in Stopples for Drain-Pipes, of which the followingis a full, clear, and exact description.

My invention relates to improvements in stopples such as are usuallymade of rubber or rubber compositions, and which are used to temporarilystop sink drains or for other similar purposes.

My invention relates especially to the means by which the center post ofthe stopple is held in place so that the body portion of the stopplewill not work loose on the post.

A further object of my invention is to produce a structure which issimple and inexpensive, and by which the post can be quickly butsecurely fastened in place in the body of the stopple. and in whichleakage between the body of the stopple and the post is prevented.

Reference is to be had to the accompanying drawings forming a part ofthis specification. in which similar reference characters indicatecorresponding parts in all the views.

Figure l is a vertical sectional view of a stopple embodying myinvention. Fig. 2

is a side view of the post partly broken away and a side view of thesocket. Fig. 3 is a top view of the socket. Fig. 4 is a bottom view ofthe socket shown in Fig. 3, when in place in the stopple, and Fig. 5 isa top view of the stopple.

The stopple can be of any usual size or shape, and as shown it is thecustomary rub ber stopple. This is provided with a center post or stud11 which extends through a perforation in the body portion 10. Thepostor stud is provided with the usual ring 12 which enables the stoppleto be removed easily when desired, and the post or stud is always a partof the stopple, and is counter-bored at its lower end as shown at 11 Thelower end of the stud which is counter-bored is adapted to enter thehollow socket member which is comprised of a lower convex part 13 andthe top disk 14, the top disk 1% having an opening to receive the lowerend of the stud 11. The outer edges of the lower convex part 13 are bentup and over the periphery of the disk 14. A washer 15 is fitted on thestud so as to lie above the top surface of the plug 10, and it abutswith a shoulder 16 on the stud 11. This washer 15 is preferably madedisk shape as shown in Fig. 2, so that when the stud 11 is fastened inplace in the stopple it will lie flat and snug and tight against the topsurface of the stopple as shown in Fig. 1.

In securing the stud 11 to the stopple 10, the stud is first put throughthe plug 10 with the washer 15 between the top surface of the plug andthe shoulder 16, and the lower member or socket comprised of the parts13 and 14, is placed over the protruding lower end of the stud 11. Asuitable tool is then forced against the bottom of the part 13 oppositethe bore 11 in the stud 11, with sufficient force to cause the part 18to be indented as shown at 13 in Fig. l, and to cause the lower edges ofthe stud to be spread out in the form of a flange as shown at l1 in Fig.1, thus binding the part 14 firmly against the bottom of the plug 10 andsecuring the stud 11 firmly between the part 14 and the washer 15.

It will be observed that the greatest strain on the post and stopple iswhen thepost is pulled up to remove the stopple from a drain, and inthis case the post 11 being firmly clamped in place in the stopple bythe flange on the lower edge of the post bearing against the part 14,the stud 11 cannot work loose, and danger of leakage between the studand the body portion 10 is eliminated.

I claim A drain stopple comprising a recessed yielding body having anaperture therethrough, a stem having a recess in its lower end extendingthrough the said aperture, a cap member, comprising, a concavo-convexWasher adapted to fit around the said stem and abut the bottom of saidrecess, and a concavo-convex disk having its edges inturned around theperiphery of the said against the inturned ortion of the disk andWasher, 21- bur formed on the lower end of thereby expand the mturnededges of the the stem, said bur being adapted to extend disk against thewall of the recess.

into a space, formed between the upper and CHAS. F. HOLCOMB. 5 lowerelements of the cap member, and form 'Witnesses:

a shoulder whereby pull on the stem tends L. V. ROBERTS,

to straighten the Washer and force its edges A. M. GUERNsEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). C.

